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Old 03-21-2017, 01:59 PM
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Default 10mm question

I don't want to make this a 'this vs. that' debate. But I do want some opinions.

I own a 4 inch .357 magnum and a .357 SIG P229. I'm interested in the 10mm. I know the .357 MAGNUM can handle bullet weights up to 180-200 grains.

Would I gain any significant (mostly anti-personel use) advantage by investing in a 10mm handgun, complete with restocking a whole new cartridge?

Will a 10mm do anything that the 4 inch .357 magnum cannot do?

thanks
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Old 03-21-2017, 02:08 PM
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IMO its a bit subjective. The 10mm does open the wound channel by another 0.04+ inches. If you're happy with the 357 stick with it unless you 'really' need another caliber!
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Old 03-21-2017, 02:09 PM
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Yes, the 10mm and 357 mag will do the same job, provided you put the round where it counts.

Last edited by CH4; 03-22-2017 at 04:38 AM.
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Old 03-21-2017, 02:32 PM
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Short answer?...No.
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Old 03-21-2017, 02:51 PM
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Shot placement is criteria #1, overwhelmingly so. IMHO the 10mm is somewhat superior to the .357 revolver and of course is available in a larger capacity semi-auto. Whether it is worth it to you to crank up another weapon and caliber solely for that purpose is a legit question.
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Old 03-22-2017, 11:18 PM
gehlsurf gehlsurf is offline
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I own a 10mm 1911 bull barrel, and 2 357's (TRR8 and 66-1. Got the 10mm first, then the revolvers, since getting the revolvers I haven't touched my 1911. I won't sell it, as I've also got a 40 S&W barrel for it I haven't tried. But I see no need in reality to own both. Reasonss? I hunt, the 357 can be loaded down to 38 for smaller game, the 10mm cannot. The 357 shoots anything I feed it, slow vel., high vel. Large grn bullets, light grn, etc. The 10mm's in auto form can be finicky, go to 10mm forum and you'll find these guys mostly tinkering around with springs, flat bottom rear plates, etc. I'd rather be shooting, and shooting whatever I want to feed it

Also, for self defense, the 10mm is a serious round, obviously, I think most the energy would be waisted, might be better if your bad guy was wearing a bullet proof vest, but past that, a waist IMHO. It really shines in long shots and being like a laser (I got a pig once at about 80 yds with mine). But long in short, I'd stay with my 357's, which may be able to do the same, but I haven't tried. If you feel you need more for defense, go Alaskan 44 mag or 454 cassull, again, atleast you can download your ammo without stove pipes and ftf issues.

Now if you reload for a 40 S&W, then it may be a fun gun for you, but I'm warning you, they can be finicky, almost too many options in ammo for that gun, it's either too light to function, or so heavy it beats the slides and frames up. Real fine lines
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Old 03-23-2017, 08:34 AM
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Quote:
Originally Posted by gehlsurf View Post
I'm warning you, they can be finicky, almost too many options in ammo for that gun, it's either too light to function, or so heavy it beats the slides and frames up. Real fine lines
This can be true for all semi-autos, not just 10mms.

I own two and they work fine. I did change to heavy springs because I only shoot full-power heavy (180 and 200) bullets.

My friend has 3 and a revolver which happily eat everything from the 155s to 200s.

I hope you get one, they are great fun. But I caution you, they are an expensive date, so reloading is almost necessary.

To answer the original question, other than the diameter, they are pretty much equal IMO.
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Old 03-23-2017, 09:02 AM
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Quote:
Originally Posted by American1776 View Post
I don't want to make this a 'this vs. that' debate. But I do want some opinions.

I own a 4 inch .357 magnum and a .357 SIG P229. I'm interested in the 10mm. I know the .357 MAGNUM can handle bullet weights up to 180-200 grains.

Would I gain any significant (mostly anti-personel use) advantage by investing in a 10mm handgun, complete with restocking a whole new cartridge?

Will a 10mm do anything that the 4 inch .357 magnum cannot do?

thanks
What is the intended purpose of the gun...personal defense as in concealed carry, field carry, hunting, just a range gun...

...and do you reload?

Bob
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Old 03-23-2017, 10:22 AM
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I have a M610 and love the fact that I can shoot .40's and 10mm with no issues with either. Being an N Frame, this 4" is pleasant to shoot even with the hottest Underwood ammo. Also love the moon clips.

I have a couple of Tanfoglio Witness's in 10mm. I did notice my first one was taking a beating with hot ammo. All the advice was to up the spring weight. I decided to use a "Sprinco" buffered guide rod. That alone did the trick. No more battering and I can change to any bullet weight or velocity I want with no changes needed.

Admittedly, the Underwood hot stuff throws the empties quite a distance but the gun doesn't stove pipe or FTF. It just runs and runs.

The Witness is pretty near the design that the Bren was. Which is what the 10mm was introduced in.

Larry
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Old 03-23-2017, 10:48 AM
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I think you may be looking at this from an obverse angle. Some factory 10mm loadings are close to 357magnum in muzzle energy, some are close to 41magnum in muzzle energy. So, I view it an "in between" caliber. But, more importantly, I view it as the upper limit in a practical loading for autoloaders. Yes, there are more powerful loadings used in autoloaders, but I don't view them as "practical" because the autoloaders used are large and unweildly. Good for poking holes in paper or hunting game. Traditionally, revolver rounds tend to produce mixed results in autoloaders. Using autoloader rounds in revolvers brings it's own set of baggage. Moonie clips for example. If, you're prepared to deal with moon clips and bullet creep, more power to ya. I'm more of a traditional kind of guy in this regard. Traditional rimmed revolver rounds for revolvers. Leave the rimless rounds for autoloaders like the 1911 and Glock 20.
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Old 03-23-2017, 11:45 AM
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IMO the biggest difference is capacity. My Glock model 20 magazine can hold 15 rounds, while my biggest .357 can only hold 6 rounds. But that kind of depends on which guns you're comparing. My Delta Elite only holds 8+1 rounds and there are .357's out there that hold 8 rounds so can be about a wash. The 10MM has the edge on velocity, but the bullet selection is better for .357. If I had to choose between the 2 I'd definitely pick the .357, but we live in a Country where you can own more than one caliber so I own them both.
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Old 03-23-2017, 01:00 PM
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I do a lot of handloading and shooting. I find the 357 revolver much more versatile in ammo avaiabilty and power levels.
from 105 grain bullets up to 200 grain. Light target , 38 special mid range , 38 special +P . light 357 magnum all the way to heavy hunting magnum loads.
I wouldn't sell the 357 . Get the 10 mm if you wish, but ammo selection will be limited. I went to Cabela's , they had 1 load to offer....that was it! Not a whole lot of choice . Even if you reload the 10 mm is basically a one trick pony. Keep the 357 .
Gary
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Old 03-23-2017, 10:31 PM
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Since you already have a 357 SIG and a 357 magnum I don't see the need for a 10 mm unless you want have the extra cash burning a hole in your pocket.
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Old 03-24-2017, 11:32 PM
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Groo here
The 10mm is a Magnum load for a normal size auto.
It will drill deeper than a 45, and shoot flatter too.
The 10 mill can run heavy bullets [up to 220gr] and still break 1000fps.
The 357 needs a longer barrel[aka bigger gun] to get to 1000fps.
Two different guns , two different loads.
If you need/want an auto go 10mm
If a revolver will do, 357 or 41/44.
Ps. The army in Iceland issues 10mm to the dogsled patrols.
It seems that polar bear are not impressed with 9mm at all!!!!!!!!!!!!!!!!!!!!
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Old 03-25-2017, 12:31 AM
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I've seen BIG wild hogs drop like a stone hit with a single 10mm.
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Old 03-25-2017, 05:18 PM
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Most likely a function of placement, then bullet construction. What little I have studied on hog shooting leads me to believe that placement really matters, followed by adequate penetration. (Just like personal defense against humans!) A reasonable solid 10mm will penetrate pretty well, even in the relatively tough hog.
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Old 03-25-2017, 05:34 PM
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10mm? What's that? Still overly priced ammo and more recoil than anyone wants. Maybe that's why they aren't all that popular.
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